University of Colorado
University of Colorado: Ph Et Interactive Simulations: Under Pressure
Students studying pressure will better understand its concepts with this virtual experiment that tests how pressure changes in air and water as the fluids, gravity, container shape, and volume changes.
Science Bob Pflugfelder
Science Bob: Oobleck: The Cornstarch and Water Experiment
Try this fun and easy experiment to learn about "Non-Newtonian" liquids.
University of Maryland
University of Maryland: Boiling Water by Pumping
A page from the University of Maryland Physics Lecture Demonstration Facility. Provides directions for a teacher demonstration which utilizes a Bell jar and vacuum pump to show the dependency of boiling point upon pressure. Shows...
Other
Steve Spangler Science: Soda Bottle Prank
This resource demonstrates atmospheric pressure using a soda bottle and water.
Museum of Science
Museum of Science and Industry: Online Science: Activities: Pop Rockets
An experiment where students launch a simple rocket using a film canister, water, and an antacid tablet.
Science is Fun
Science Is Fun: The Collapsing Can
An experiment using an aluminum can and boiling water that demonstrates that the air around us has pressure, although we may not be aware of it.
PBS
Pbs Teachers: Make Some Zlime
Explore properties of matter by making a slimy substance out of cornstarch and water then noticing how it reacts to pressure.
Other
60 Second Science: Air Putting It to Work
Investigate the properties of air. Observe the water vapor present in our exhaled breath.
University Corporation for Atmospheric Research
Ucar: Clouds in the Air: Why Are They There?
An experiment that demonstrates why there are clouds in the sky. Start with air, invisible water vapor, particles we call condensation nuclei, and air pressure...the cloud comes later!
American Chemical Society
American Chemical Society: Best of Wonder Science: There's Air in There! [Pdf]
An experiment to obsevre the effects of air pressure on the water level inside a bottle.
American Chemical Society
American Chemical Society: Best of Wonder Science: Air: It's Really There [Pdf]
An experiment to explore the properties of air, using a cup placed upsidedown in water.